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Is there a standardized method to swap two variables in Python?
... this tuple, no assignement of this tuple object have still been made, but it doesn't matter, Python internally knows where it is
then, the left-hand side is evaluated, that is to say the tuple is assigned to the left-hand side
as the left-hand side is composed of two identifiers, the tuple is unpa...
Javascript shorthand ternary operator
... startingNumber || 1;
Something like that what you're looking for, where it defaults if undefined?
var foo = bar || 1; // 1
var bar = 2;
foo = bar || 1; // 2
By the way, this works for a lot of scenarios, including objects:
var foo = bar || {}; // secure an object is assigned when bar is a...
What encoding/code page is cmd.exe using?
When I open cmd.exe in Windows, what encoding is it using?
6 Answers
6
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Alter MySQL table to add comments on columns
I have been checking the MySQL Documentation for ALTER TABLE and it does not seem to include a way to add or modify a comment to a column. How can I do this?
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How to do a GitHub pull request
How do I create and/or send a pull request to another repository hosted on GitHub?
8 Answers
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How do I put a clear button inside my HTML text input box like the iPhone does?
I want to have a nice little icon that, when clicked will clear the text in the box.
9 Answers
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Is there auto type inferring in Java?
...
Answered before the question was EDITED :
No there is no auto variable type in Java. The same loop can be achieved as:
for ( Object var : object_array)
System.out.println(var);
Java has local variables, whose scope is within the block where they have bee...
How to create index in Entity Framework 6.2 with code first
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Well 26.10.2017 Entity Framework 6.2 was officially released.
It includes a possibility to define indexes with ease via Fluent API. Ho it is to use was already announced in the beta of 6.2.
Now you can use the HasIndex() method, followed by Is...
How to select where ID in Array Rails ActiveRecord without exception
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If it is just avoiding the exception you are worried about, the "find_all_by.." family of functions works without throwing exceptions.
Comment.find_all_by_id([2, 3, 5])
will work even if some of the ids don't exist. This wor...
How to find all duplicate from a List? [duplicate]
...follow
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edited Jan 24 '15 at 7:15
Shahin
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